Police are pursuing a new lead based on photos and videos of an individual taken around hours before the deadly mass shooting at Brown University, authorities said today. Follow for live updates ...

Carl Sagan famously said that "We're all made of star stuff." But he didn't elaborate on how that actually happened. Yes, ...

New laboratory studies could shed light on a rock containing potential signs of alien life that’s stranded on Mars ...

Two recent studies show the novel therapy works in people with multiple myeloma, but researchers are trying to minimize side ...

Water behaves 100,000 times better electrically in ultrathin channels, transforming chemistry in cells and advanced materials ...

From the moment an embryo starts to take shape, two-way communication is critical for making sure tissues and organs develop ...

Figures from Hollywood and US politics have paid tribute and expressed shock after acclaimed director Rob Reiner and his wife ...